So you have more concepts of a rhino character? Wow, this one looks interesting, by putting the horns in the front of the head and everything. But well, I actually look him more like one of those japaneses ogre XD I would probably have think it like that if you wouldn´t mention him as a rhino character. I´m sure that the other version might be better for the concept.

Still, it is a great shot, I really like it, and we can see that he´s a giant being XD